Luft Pump - 7.0 psi

Coralife

Coralife's Luft Pump produces a high-pressure output ideal for protein skimmers, reactors, and other high pressure/high flow devices. The Luft Pump's rugged construction features a coated coil, a durable rubber diaphragm and ozone-resistant materials to ensure years of reliable performance. The pump also features an adjustable rheostat, allowing air flow rate and pressure to be fully regulated to suit the requirements of any air-driven device.

Bought this for a 125 gallon tank. It's reasonably quiet, as air pumps go. It has the ability to put out way more air than I need for my application. I have it dialed back to minimum and it's still plenty for a 6 inch stone. Could probably run multiple stones or tanks if need be. I like it so far, ask me in a year.